You are right, Rick. The Belle Aire was owned by the Warren family who also ran the Blue Dell, Greater Pittsburgh, Rose, Super 30 and South Hills Drive-Ins.

I think the Belle Aire was placed behind the Blue Dell Pool, which was right next to the Blue Dell Drive-In. Joe Warren, who now runs the Evergreen Drive-In in nearby Mount Pleasant, shows us where it was in the WQED documentary “Stuff That’s Gone”

I think I’ve finally found confirmation of the Belle Aire. From the Historic Aerials website, key in MAGNUS LANE IRWIN PA, bring up the 1957 aerial photo, and select “All Roads” from the overlay menu. The Blue Dell Pool is right across from Edwin Drive on Route 30; if you look to the right of the pool you can see what is undoubtedly the Belle Aire Drive-In. The current satellite photo shows the Elizabeth-Hata International building on the former drive-in site with the open field that used to be the Blue Dell Pool in front of the main parking lot.